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Related papers: Temperature-Dependent Emission Polarization in GaN…

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We report measurements of the temperature $T $ dependence of the linear polarization $\langle P\rangle $ of the thermal radiation emitted by thin, incandescent tungsten wires. We investigated an interval ranging from a little above room…

Optics · Physics 2015-02-25 A. F. Borghesani , G. Carugno

We investigate the dependence of the low-temperature photoluminescence linewidths from InP-lattice-matched InGaAs/InAlAs quantum wells on the low-angle misorientation from the (100) surface of the host InP substrate. Quantum wells were…

The effect of the electron temperature on both the light absorption and the scattering by metal nanoparticles (MNs) with excitation of the surface plasmon electron vibrations is studied in the framework of the kinetic theory. The formulae…

Mesoscale and Nanoscale Physics · Physics 2013-11-25 N. I. Grigorchuk

A polarization-sensitive optical coherence tomography (PS-OCT) system is able to not only show the structure of samples through the analysis of backscattered light, but is also capable of determining their polarimetric properties. This is…

When polarized electrons traverse a region where the laser light is focused their polarization varies even if their energy and direction of motion are not changed. This effect is due to interference of the incoming electron wave and an…

High Energy Physics - Phenomenology · Physics 2009-10-30 G. L. Kotkin , H. Perlt , V. G. Serbo

A presented analytical formulation of (optical)phonon-mediated and momentum-resonant Franck-Condon emission of photoexcited electrons from polar semiconductors is shown to be very consistent with (i) the observed emission properties of a…

Materials Science · Physics 2025-06-17 W. Andreas Schroeder , L. A. Angeloni , I-J. Shan , L. B. Jones

Photoluminescence measurements on high-quality InGaN quantum wells reveal that carriers diffuse laterally to long distances at room temperature, up to tens of microns. This behavior, which shows a pronounced dependence on the excitation…

Materials Science · Physics 2021-05-19 Aurelien David

Studies of photoluminescence (PL) can provide fundamental insight into the optical properties of semiconductor nanoparticles (NPs) but the same is being limited by NP size distribution and low luminescence yield. Inorganic semiconductor…

Materials Science · Physics 2010-05-04 A. M. P. Hussain , S. N. Sarangi , S. N. Sahu

We discuss the properties of thermal electromagnetic radiation produced by a neutral polarizable nanoparticle moving with an arbitrary relativistic velocity in a heated vacuum background with a fixed temperature. We show that the particle…

Mesoscale and Nanoscale Physics · Physics 2014-08-26 G. V. Dedkov , A. A. Kyasov

Gallium nanoparticles (Ga-NPs) exhibit promising plasmonic properties spanning ultraviolet to infrared spectral regions, making them suitable for diverse nanophotonic applications. However, the synthesis of uniform and ordered Ga-NP arrays…

We present experimental results of transverse electron-focusing measurements performed using n-type GaAs. In the presence of a small transverse magnetic field (B), electrons are focused from the injector to detector leading to focusing…

Mesoscale and Nanoscale Physics · Physics 2017-09-25 Chengyu Yan , Sanjeev Kumar , Michael Pepper , Patrick See , Ian Farrer , David Ritchie , Jonathan Griffiths , Geraint Jones

We report on measurements of the photoluminescence (PL) properties of single nitrogen-vacancy (NV) centers in diamond at temperatures between 4-300 K. We observe a strong reduction of the PL intensity and spin contrast between ca. 10-100 K…

Mesoscale and Nanoscale Physics · Physics 2023-09-01 Stefan Ernst , Patrick J. Scheidegger , Simon Diesch , Luca Lorenzelli , Christian L. Degen

Two types of room temperature detectors of terahertz laser radiation have been developed which allow in an all-electric manner to determine the plane of polarization of linearly polarized radiation and the Stokes parameters of elliptically…

thermal radiation emitted by a %hot cobalt wire in the temperature range from \(T\approx 400\,\)K up to melting. The radiation is linearly polarized perpendicular to the wire. \(P\) decreases from \(30\,\%\) just above room temperature down…

Materials Science · Physics 2019-12-23 A. F. Borghesani , M. Guarise , G. Carugno

We experimentally investigate various quantum polarization features of three-photon quantum states, including product and entangled states with varying purity. The three-photon quantum states are categorized into six classes based on the…

Quantum Physics · Physics 2017-09-27 Yosep Kim , Gunnar Björk , Yoon-Ho Kim

Using a well known method for laboratory plasma diagnostic, the Boltzmann-plot, we discuss the physical properties in Broad Line Region (BLR) of Active Galactic Nuclei (AGN). We apply the Boltzmann-plot method to Balmer lines on a sample of…

Astrophysics · Physics 2009-11-07 L. C. Popovic

Two types of room temperature detectors of terahertz laser radiation have been developed which allow in an all-electric manner to determine the plane of polarization of linearly polarized radiation and the ellipticity of elliptically…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 S. D. Ganichev , W. Weber , J. Kiermaier , S. N. Danilov , D. Schuh , W. Wegscheider , Ch. Gerl , W. Prettl , D. Bougeard , G. Abstreiter

In the search for materials for quantum information science applications, colloidal semiconductor nanoplatelets (NPLs) have emerged as a highly promising new class of materials due to their interesting optical properties, such as narrow…

Thermal radiation is an abundant form of incoherent light. Generating coherent infrared light through incandescence promises a cheap alternative to the costly and epitaxially complex quantum cascade laser, however it remains a fundamental…

We present two loop corrections to photon self energy at finite temperature in real time formalism. An expression for renormalized coupling constant has been derived in a form that is relevant for all temperature ranges of interest in QED,…

High Energy Physics - Theory · Physics 2013-10-15 Samina S. Masood , Mahnaz Q. Haseeb